Longstreet Inc. has fixed operating costs of $470,000, variable costs of $2.80 per unit produced, and its product sells for $4.00 per unit. What is the company's break-even point, i.e., at what unit sales volume would income equal costs?
a. 391,667
b. 411,250
c. 431,813
d. 453,403
e. 476,073